请教GWD-6-Q22

GWD6-Q22:

Charles Lindbergh, for his attempt at a solo transatlantic flight, was very reluctant to have any extra weight on his plane, he therefore refused to carry even a pound of mail, despite being offered $1,000 to do so.

A.      Charles Lindbergh, for his attempt at a solo transatlantic flight, was very reluctant to have any extra weight on his plane, he therefore

B.      When Charles Lindbergh was attempting his solo transatlantic flight, being very reluctant to have any extra weight on his plane, he

C.      Since he was very reluctant to carry any extra weight on his plane when he was attempting his solo transatlantic flight, so Charles Lindbergh

D.      Being very reluctant to carry any extra weight on his plane when he attempted his solo transatlantic flight was the reason that Charles Lindbergh

E.       Very reluctant to have any extra weight on his plane when he attempted his solo transatlantic flight, Charles Lindbergh

觉得E没错，但是不知道A哪里错了？

感激~~我居然不知道therefore是副词！！我说为什么没有人问这道题呢~~~

谢谢！！！谢谢！！

同问

B中分词作修饰状语出现在句中容易出现歧义 并且句首就是连续两个状语的叠加 表达混乱 

D把原句的结构整个改掉了(主语从人变成事了), 使得重心和句意都变了.

还有那个being relucant, 貌似没有逻辑主语.